package com.sky.controller.user;

import com.sky.constant.StatusConstant;
import com.sky.entity.Dish;
import com.sky.result.Result;
import com.sky.service.DishService;
import com.sky.vo.DishVO;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import java.util.List;

@RestController("userDishController")
@RequestMapping("/user/dish")
public class DishController {




    @Autowired
    private DishService dishService;

    @Autowired
    private RedisTemplate redisTemplate;


    /**
     * 根据分类id查询菜品
     * @param categoryId
     * @return
     */


    @GetMapping("/list")
    public Result<List<DishVO>> list(Long categoryId) {
        //获取redis的key
        String KEY="dish_"+ categoryId;

        //获取redis缓存数据
        List<DishVO> list = (List<DishVO>) redisTemplate.opsForValue().get(KEY);

        //判断缓存数据是否存在
        if (list != null && list.size() > 0) {
            return Result.success(list);
        }


        Dish dish = new Dish();
        dish.setCategoryId(categoryId);
        dish.setStatus(StatusConstant.ENABLE);//查询起售中的菜品

       //如果不存在，则查询数据库，填充缓存
        list = dishService.listWithFlavor(dish);
        redisTemplate.opsForValue().set(KEY, list);

        return Result.success(list);
    }
}
